Jaskaran S.

I'm a Full-stack Blockchain and Smart Contract Developer with 9+ years of experience building secure, scalable, and innovative Web3 products from DeFi platforms and DAOs to crypto exchanges and ZK integrations using Python and GoLang. I combine hands-on development with real-world insight as an active crypto trader on platforms like Binance and Poloniex, bringing a deep understanding of both blockchain technology and market dynamics. 🔐 Smart Contract Development & Auditing (EVM, Solana, ZK): ▪ EVM-compatible chains: Ethereum, Arbitrum, Optimism, Base, BNB Chain, Polygon ▪ Solana: Rust, Anchor, SPL tokens, Phantom wallet integration ▪ Token standards: ERC-20, ERC-721, ERC-1155, SPL ▪ Back-End Development: Node.js, Python, Nest.js, MySQL, RESTful APIs, GraphQL, and server-side integration ▪ Front-End Development: React.js, Next.js, Vue.js, Nuxt.js, HTML5, CSS3, and JavaScript (ES6+) Database Management: SQL, MySQL, PostgreSQL, MongoDB 🏗️ Blockchain Product Development: ▪ DApps for DeFi, NFTs, DAOs, DePIN, and enterprise use cases (logistics, healthcare, insurance, banking) ▪ Full-stack dApp development: Python, Golang, React.js, Next.js, Tailwind, TypeScript ▪ Web3 integrations: ethers.js, web3.js, viem, wagmi, RainbowKit ▪ Protocols & tools: IPFS, The Graph, Chainlink, Pyth 📈 Crypto Platforms & Trading Systems: ▪ Multi-currency wallets (hot/cold) using native nodes or APIs (Coinbase, Fireblocks, BlockCypher) ▪ Crypto exchanges with real-time trading, KYC/AML, order books, and secure Web3 integration ▪ Fiat-to-crypto gateways with Stripe, PayPal, and credit card support ▪ Swap services via DEX APIs (e.g., ShapeShift, Changelly) ▪ Market tracking platforms with live charts and portfolio tools ▪ Mobile crypto wallets: Flutter, React Native, Swift, Kotlin ▪ RESTful APIs & WebSocket services for external integrations ▪ Cross-platform desktop apps for Windows/macOS/Linux AI Automation Tool: Claude, Make, n8n 🧠 Leadership & Consulting: Sprint planning, technical documentation, and developer onboarding Code reviews, PR management, and mentoring junior engineers Tools: GitHub, JIRA, Trello, Slack, Notion Whether you're launching a new dApp, building a trading platform, or need a smart contract audit. I deliver clarity, security, and execution to turn ideas into reliable Web3 products.